Pile-wire cutter



Feb. 1; 19270 Faa- M. B. BEZHRMAN FILE WIRE CUTTER Original Filed 09 s, 1924 INVENTOR A'ITOR EY Patented Feb. 1, 1927. I

MARCUS B. nnnnivran, or nnooxrrn, New "roan, assrenoa TO THE Lox sEAL ioonronA'rIoN, or BROOKLYN, new roan, A COBEOB-ATIGN or new YonK.

FILE-WIRE curries.

Application filed October a, 1924,5eria1 No. 741,401. Renewed October 25,1926."

My invention relates generally to a pile cutting means for the type of looms which weave pile fabrics and more particularly to an association with the pile wires generally employed in such looms, of a cutter for cutting the loops as the pile wires are 7 withdrawn.

In looms whichI employ pile wires, the warp threads are generally looped over these wires and when it is desired'to produce a out pile fabric, "cutters are so associated 'with the pile wires that upon'withdrawal of the wires from will cut through the loops. Due to the rapidity with which these pile wires are thrown in and withdrawn and "the number of threads to be out upon each withdrawal, each cutting edge is subject to a great number of cutting. operations in a short time and therefore dulls quickly and such edges must obviously therefore be either frequently resharpened or frequently replaced. v The use of a cutter which is separable from the pilewire for permitting replacement of the blade is attended with a number of problems,among which is that any arrangement for securing the blade in position whih on the one hand will serve to hold the blade in. association with the pile wire so that it will not shift therein nor will itbe accidentally separated therefrom, may

on the other hand so secure the, blade as to render its removal difficult and time consuming.

One of the important objects of my invention, therefore, is the provision of an arrangement whereby a cutting blade is so associated with the pile wire that while it is fixedl held in position thereon and against accidental movement. its quick and effective removal is permitted. a

Looms of the type referred to are already provided with pile wires audit is one of the important objects of my invention to so devise the cutter and its manner of association with a pile wire that the cutter can be associated with the conventional form of pile wire without requiring a replacement of the pile wires or any substantial change or reconstruction therein.

My invention further involves the provision whereby a blade of a flexible wafer type made from sheet material may be emploved and an arrangement for so supportthe fabric, the cutters stantial flexing of the bladeeither for purv poses of insertion or for removal.

'My. invention further involves the provision of a simple, inexpensive and efficient cutting blade and of a novel, simple, readily operable,'mexpens1ve manner of associating the blade with the pile wire so as to permit the blade on the one hand to perform its Fig. 3 s a s de elevational view of the cutt er.

I Fig. 4 is a section. taken online H i V ofFig.2;and. a H

Fig. '5. is a. horizontal section taken on line 5-5 of Fig. 2. a

In Fig.1, I show the pile wire, the front end of which 10 forms the blade holder and which front end may be either integral with the pile wire or in' the form of an attach 'ment thereto. This holdergis preferably made from a sheet metal blank and bent upon itself longitudinally so as to-provide the walls 11 and 12 and the bottom 13 which define channel 14, in which the knife is adapted to be moved and secured initspredetermined position. v Upon viewing the figures of the drawing, itv will be observed that thewall 11fis provided at the front end thereof, withthev spoon-like member 16 which extends beyond the wall 12 and is wider than the'wall111 I and which preferablyfnarrows towards its front end 17 and which is. curved all for purposes that will be clearly understood for those skilled in the art.

The wall 12 has "at its front end, the upi wardly. extending finger 20, the uppermost portion of which is bent at an'angle thereto and across the channel 14 and intoregistry with an opening 22 in the member 16, within which opening it is secured in any preferred or desired manner, asiby brasing or.

We ding- Thi P 1-2 i h M1112 has extending [therefrom in the forward 'ilarly extending part way intothe channel 14, the twoteats' being in registry so as to form a restriction of the channel at th s point. These teats are preferably each arranged so a s'to provide an inclined surface '25and 26 with which the knife coacts in its movement to locking position and are arranged to provide an inclined surface and2'6 in the opposite direction so as to permit of a release of the blade.

'- The knife which I prefer to employ with this embodiment of my invention is preferably of the sheet metal wafer type and is of a dimension to be received in the chancross piece 21 from the bottom 13.

not let-for movement thereon with its lower edge 31 seatedonthe bottom 13 of the chain nel la. The cutting edge 32 of this knife .isinclined asshown, the height of the wall 11 and 12 and of the channel, being such that the major portion of the cutting edge SQis exposed for cutting operation.

"The blade 30 is further provided with the rearward extending portion 33 provided with the slot 34 extending downwardly and preferablyalthoughinot necessarily open to the lower end of the blade. 1

In the assembly of the blade with the holder, the blade is introducedinto the channel '12 inwardly or to the right of the finger 20 and then moved along toward the forward or the front end of the pile wire blademoved beneath the cross piece 21 as shown in Fig; 4;. The height of the part 33, is about equal to the distance of this As this blade is moved along as described, its rearmostportion 36 is brought in contact with the two opposed teats Qtand 25 and upon a continued movement, these teats will be forced apartlaterally of each other atleast sufliciently to permit this portion of the blade Jto pass therebetween until the slot; 34 is brought into registry with the opposed teats,

upon which these teats move toward each other and into the slot 84. In this position,

the'b 'l'ade is held against movement in either a direction exceptup'on the application of an i to abnormal pressure and is held positively aga nst movement toward the pointed or enter end oif 'the pile wire by the engagement of theshoulder 88 on the blade with the shoulder 35 on the portion 20.

' l e-bladeean be removed either by applying a'sutficient pressure thereto to the. right to cause it to force the two ric's, a holder adapted to form teatsapart in any other manner or where for any reason whatsoever,it is so desired, the

difference in the length of the walls 11 and The engagement of the cross piece associated at the top of the blade will prevent any tendency of the blade to rotate about the teats 25 and '26.

By placing teat25 adjacent the extreme end of the finger 24, I provide a construction whereby this finger 24' is made relatively more flexible than the rest of the. holder and in thismanner, one insertion and removal of the blade'ismade less dificult.

Having thus described my invention and illustrated its use what I claim as 'newnnd desire to secure by Letters Patent is- 1. For use in looms for weaving pile 'fabrics,a'holder adapted to form part of a pile wire and havinga channel to rec eivea cutting implement with one edge of the implement seated on the bottom of the channel, abutments extending inwardly on the opposite walls of said channel, said abutments being forced inwardly'from the walls of the channel and being integral therewith at all points,.a cutting implement arranged so as to be received in said channel and provided with a slot opened to one edge thereof and arranged to register with the abutments when the blade is moved alongthe channel whereby as said implement is moved along the channel, the abutments on the walls of slot in the implement is in registry with, when the abut-ments will move toward each other and position themselves within the slot of the implement to against movement in either direction.

2. F or use in looms for weaving pile fabrlcs, a holder adapted pile wire and having a channel movementin said channel said means in-' eludingmembers extending inwardlyv on the opposite walls of the channel and oppositely to each other, the member on the short'wall being positionedadjacent the extreme end thereof, whereby an implement provided.- wlth a cut away portion can be moved into the channel to bring said cut away portion thereof into registry with the opposed members for holding the implementin position.

3., F or use in looms for weaving hold the implement Pi e f part of a 7 v the channel will be forced a art ntl tl with the lower end of the blade 31 seated p u 1 1b on thebottom 13 and the portion of the 1' i posite saidextended portion, a finger proopposite said jecting forwardly from the shorter" wall and spaced from the bottom of the channel and a teat projecting inwardly from and adjacent the outer edge of said finger, whereby a knife having a cut away portion therein and moved along said channel will engage said teat and force it laterally until the cut out portion of the implement is in registry with the teat upon which the teat will move into the cut out portion to hold the'blade in position.

4:. For use in looms for weaving pile fabrics, aholder adapted to form part of a pile wire and having a channel to receive a cutting implement with one edge of the implement seated on the bottom of the channel, one of the walls ofthe channel being 2 extended longitudinally beyond the other whereby the channel is opened laterally opposite said extended portion, a finger projecting forwardlyfrom the shorter wall and spaced-from the bottom of the channel and a teat projecting inwardly from and adjacent the outer edge of said finger, whereby a knife having a cut away portion therein and moved along said channel will engage said teat and force it laterally until the cut out portion of the implement is in regfstry with the teat upon which the teat will move into the cut out portion to hold the blade in position, and a teat on the longer wall extending inwardly and opposed to the first mentioned teat. v

5. For use in looms for weaving pile fabrics, a holder. adapted to form part vof a pile wire and having'a channel to receive a cutting implement with one edge of the implement seated nel, one of the walls of the channel being extended longitudinally beyond the other whereby the extended portion, a finger projecting forwardly from the shorter wall and spaced from the bottom of the channel and a teat projecting inwardly from and adjacent the outer edge of said finger, whereby on the bottom of the chanchannel is opened laterally a knife having a cut away portion therein and moved along said channel will engage said teat and force it laterally until the cut out portion of the implement is inregistry with the teat upon which the teat will move into the cut out portion to hold the blade in position, means spaced from said teat to engage the implement and preventits rotation about the teats.

6. For use in looms for weaving pile fabrics, a holder adapted to form part of a-pile wire and having a channel to receive -a cutting implement, one of the walls of the channel bein extended longitudinally beyond the other whereby the channel is opened laterally opposite said extended portion, a projection formed inwardly of the outer edge of the shorter wall, and extending inwardly into the channel, whereby a knife moved along said channel will engage said projection and force it laterally to bring a portion of the implement in registry with the projection to cause the two to interlock.

7. For use in looms for weaving pile fabrics,

a holder adapted to form part of .a pile wire and having a channel to receive a cutting implement, one of the walls of the channel being extended longitudinally 7 beyond the other whereby the channel is 7 opened laterally opposite said extended portion, a member projecting inwardly into the channel from the shorter wall, and so arrangedthat upon the movement of the implement in the channel, the projection will permit the blade to automatically pass there by to cause the projection to interengage with a. portlon of the implement, so as to hold the blade against movement in either direction.

8. A ile wire blade holder having a recess a apted to-receive a blade, and pre,

senting a projection which is adapted to interengage with and lock the blade in the recess, said blade holder having a flexible portion other than said projection, adapted to be fiexed'to move said projection laterally thereby to withdraw it from its locking engagement with said blade.

In testimony whereof, I have signed this specification, this 26th day of September,

MARCUS B, BEHRM-AN, 

